Public bug reported:
journalctl -f
pkexec[11203]: gdm: Error executing command as another user: Not
authorized [USER=root] [TTY=unknown] [CWD=/var/lib/gdm3]
[COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-
brightness 155]
lsb_release -a
LSB Version:
core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: gdm gnome-settings-daemon pkexec
** Attachment added: "Ubuntu 4.13.0-16.19-lowlatency 4.13.4"
https://bugs.launchpad.net/bugs/1726684/+attachment/4990060/+files/version.log
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https://bugs.launchpad.net/bugs/1726684
Title:
Error for gdm executing gsd-backlight-helper --set-brightness
Status in linux package in Ubuntu:
New
Bug description:
journalctl -f
pkexec[11203]: gdm: Error executing command as another user: Not
authorized [USER=root] [TTY=unknown] [CWD=/var/lib/gdm3]
[COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-
brightness 155]
lsb_release -a
LSB Version:
core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
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